Yes the product of two integers with different sings can be positive or negative if is negative and negative equal a positive
 
        
             
        
        
        
Answer: If Percentage decrease % = 20%, (1 - Percentage decrease %) = 1 - 20% = 100/100 - 20/100 = 80/100 = 0.8 => Percentage decreased number = 0.8 × Initial value
Step-by-step explanation: Number 100 decreased by 20% (20 percent) of its value (percentage decrease) and calculated absolute change (actual difference)
 
        
             
        
        
        
Answers:
(sin40)/(cos40) and 
(cos50)/(sin50)
        
             
        
        
        
Its 4 by the way cause it is
        
             
        
        
        
Answer:
5
Step-by-step explanation:
We know that a^2+b^2=c^2 from the Pythagorean theorem   where a and b are the legs and c is the hypotenuse 
4^2+3^2 = c^2
16+9 = c^2
25 = c^2
Taking the square root of each side
sqrt(25) = sqrt(c^2)
5 =c